Lennox Hearth ST310 Stove User Manual


 
4
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
DrafTing
Your wood stove is dependent upon a properly functioning
chimney for optimum performance. It is a high efficiency
appliance that loses much less heat up the chimney than
older appliances and fireplaces. For this reason it is important
to match the stove to the chimney. The chimney has two
functions: 1) It draws combustion air into the appliance
(without air, no fuel will burn) and 2) It exhausts combustion
by-products. Your new Country™ Collection stove is what is
known as a “natural draft” appliance. The appliance depends
solely on the natural draft of the chimney system to draw
combustion air into the unit. Draft is the force that moves
air from the appliance up into the chimney. The amount of
draft in your chimney depends on the length of the chimney,
local geography, nearby obstructions, and other factors. Too
much draft may cause excessive temperatures in the appli-
ance. Slow or inadequate draft equals poor combustion and
possible smoking problems. The two main culprits of poor
chimney draft are: 1) A chimney too large for your appli-
ance and 2) A chimney with not enough height to produce
adequate draft for your particular stove model. Your Lennox
Hearth Products dealer will be able to advise you on matching
a proper system for your new stove. Inadequate draft will
cause the appliance to leak smoke into the room through
the stove and the chimney connector joints. An uncontrol-
lable burn or a glowing red stove or chimney part indicates
excessive draft. Also see Troubleshooting on page 18.
negaTive Pressure Warning
This appliance is not designed to be operated in a negative
pressure. Very airtight homes with large kitchen exhaust
fans, or homes with furnace cold air returns located in close
proximity to the wood stove or fireplace insert may create
negative pressure in the same room as the heating appli-
ance. This can create dangerous back drafting of the stove
and chimney joints, drawing combustion by-products into
the home. Be sure your home has adequate makeup air to
eliminate negative pressures caused by the above-mentioned
sources. Outside air connected to the appliance probably
will not resolve such a problem as the stove or fireplace
insert is not the source of negative pressure. Lennox Hearth
Products accepts no liability for damages resulting from
negative pressures described above.
creosoTe
Creosote - Formation and Need for Removal
When wood is burned slowly, it produces tar and other
organic vapors, which combine with expelled moisture
to form creosote. The creosote vapors condense in the
relatively cool chimney flue of a slow-burning fire. As a
result, creosote residue accumulates on the flue lining.
When ignited, this creosote makes an extremely hot fire.
The chimney and chimney connector should be inspected
at least once every two months during the heating season
to determine if a creosote build-up has occurred. If creosote
has accumulated, it should be removed to reduce the risk
of a chimney fire.